Hot top for multiple casting of metal ingot



May 8, 1923. 1,454,741

B. H. HOWARD ET AL HOT TOP FOR MULTIPLE CASTING OF METAL INGOTS Filed Feb. 5, 1923 3 Sheets-Sheet l May 8, 1923. 1,454,741 B. H. HOWARD ET AL HOT TOP FOR MULTIPLE CASTING OF METAL INGOTS Filed Feb. 3, 1923 5 Sheets-Sheet May 8, 1923.

B. H. HOWARD, ET AL HOT TOP FOR MULTIPLE"CA STTNG OF METAL INGOTS 2 5 Sheets-Sheet Filed Feb.

' the trough is securely feeder and heldagainst lateral movement showing i atented May 8, 123.

BLOOTVIFIELD H HOWARD, OF WASHINGTON, DISTRICT OF COLUMBIA, AND ERNEST 3'.

TURNER, 0F PITTSBURGH, PENNSYLVANIA.

HOT 'I'Ol FOR MULTIPLE CASTING OF METAL INGO'JM Application filed February 3, 1923. Serial No. 616,721.

To all whom it may concern:

Be it known that BLOOMFIELD H. HOWARD and ERNEST J. TURNER, citizens of the United States, residing, respectively, at city of Washington, Pittsburgh, county of Allegheny, State of Pennsylvania, have invented certain new and useful Improvements in Hot Tops for Multiple Casting of Metal Ingots, of which the following is a specification. 1

Our invention relates to improvements in feeders for multiple casting of metal ingots.

The object of our invention is to provide a feeder adapted for multiple casting of metal ingots, supported within the upper end of the mold and so constructed that the molten metal may run out of the same after the metal has reached a predetermined height, into the adjoining mold and at the same time providing a feeder adapted to be used on any of the well known forms of molds without any change in the mold.

Another object of our invention is'to provide a feeder having all of the advantages of the ordinary feeder used on molds in single casting, to prevent seams and holes known as piping and also reduces segregation to a minimum.

A further object of our invention is to provide a feeder having the necessary strength to support thetrough for conveying the molten metal from one mold to the adjacent mold, when the molten metal has reached the predetermined level in the feeder and at the same time providing means whereby supported by the and also providing means whereby a tight joint can be made between the feeder and the trough. A still further object of our invention is to provide a feeder in which the metal in flowing from one mold to the adjoining mold, will not strike against the wall 0 the mold and injure the same and atvthe same time providing a simple cheap and .efiective. feeder having certain details of structure and combination of parts hereinafter more fully set forth. 7 j

In the accompanying drawings;

Figure 1 is a side elevation of aseries of molds arranged our improved feeder applied thereto with a trough in-place between each mold District of Columbia, and

in stepped relation and for conveying the molten metal from one at mold to the other.

Figure 2 is a top plan view of a feeder showing the cut-out portion for supportingthe trough and allowing the molten metal to overflow from the feeder to the adjoining to .mold.

Figure 3 is a side elevation of Figure 2.

Figure 4 is a top plan view similar to Figure 2 showing the supporting ribs terminating at a point belowthe lower end no of the over-flow opening and serving as a support for the trough.

Figure 5 is a side elevation of Figure 4:. Figure (3 is an enlarged sectional View of the upper ends of two feeders in their operativo position and showing in full lines the trough for conveying the molten metal from one mold to the adjoining mold.

Figure 7 is a top plan view of a modified form of feeder, in which three walls of the feeder are provided with the over-flow openings.

Figure 8 is a top plan view similar to Figure 7 showing all four walls having the over-flow openings.

Figure 9 is a sectional view of the upper end of aningot mold showing a feeder in full lines therein vand said feeder having the ribs omitted from the exterior and supported by a ledge on the inner wall of the so mold.

Figure 10 is a sectional view similar to Figure 9 and taken at ri ht angles thereto andshowing a modified orm of mold and feeder. as Figure 11 is a top plan view. of a feeder partly broken away showing means for supporting the trough ii the opening in the feeder.

Referring now to the-drawings. 1 re'pree5 sents a basewhich as shown in Figure 1 of the drawings is of a stepped form upon t which the bases 2 of the several molds 3 are supported and whereby each succeeding mold has its upper end, lower than the other mold. Arranged within each mold is one of our improved feeders 4:, which as shown is preferably of the form-shown in Figure 2 of the drawings, having the ribs 5 extending from the upper edge and ter- 1% minating at a point above the lower .end as indicated at 6 and said ribs serving as supports for holding the feeder in the upper 'oeeding it, ids-shown in Figurc r -making this oint tight ooulrl be employed opengnm- Without departing from our invention.

end of ingoi moid and. which-is shown on mold 233 and reslzing'on liie' iedgo in our prior rind therefore needs no formed by said enlarged boroond islio feeder further description. One wail of the is provided with an opening to receive is provided with a outoot portion 7 at its the tr ough and allow tho molten mom to upper end and wiiir'ii serves as anoverfioiw pass therefrom, the samoos in tho ollhor fio openingto allow the molten metal to 1617 Iorms. in Figure 10 the 'WhOlfif'EBi'lQT 33 from the feeder to the feerler or mpld sno- Within the upper end oi tho mold and su "I of the ported by the some as slioWn-in Figure 9 and drawings oacli mold lies a feeder arranged is provided Wifih an oivel'ilowvoponingfifi and, therein and resting on the l the opening 7 is-o iroogh) wliioh has its corresponding therewith. other and resting" upon .the npper'end of the In Figure 11 of the drawings the overfioisi siicceoding -i'ederas-clearly shown lliFlfZ opening 29 onj'oll sides is provided with o' ure .1 of: the drawings, A v tight I joint is recess to receive the end ofthe trorigl'i and oWer-woll S oi the mold provided with an opening 28 E5 made beweon iiio' irongli and rile Walls of Wheroby a tight joint may be formed beg- Q tho opening; 7 by means of old orijthe like tween the feoder and the trongh'and which." 931d Wheroby any leakage o {Be molten bririgs tho' ippor face of the bottom of the metal is prevented but any other moans. or ,trougn flush with the bottom'of the overflo As'iwi As will be seen from the drawings the (lisizlflge into tho mold a'nd'the. molten metal 1 ropening in the feeder, is o'o tho upper as, it flows fhrongh'the troughond ompoieoj end thereof and hos its lower end. ii a coninto mold will strike the Well of; ore fe'odoir' sideroj'ole d-is tanco ooove'ho lower-ends 8 below'the'oponing and aims prevenooriy-i of the ribs 5 whereby a smi'ioiont simoi nt of injury to the walls of tho-mold. r the feeder s in the mold and alsoveiiio mold Having thus fully described our invention V to retain the necessary "amount'of lied-=3 to What We claim and desire to secures lay Leo prevent piping "fond practically eliminate Jiji rs P p m is trough ond the' inoli en motel flowing-thereough and m which event we hovo probody. of refractory material and having 2% .c

sog'regoiion.

1. A hot iop' rm ingot molds comprising il "be seen" the feeder oxionds some in somo l1'1StaiLJGS it mightfbe-neoesoary' 31 body portion having odi'schargo'opening 9 to relieve ohe feeder of tl e woigiifi of'olio below the upper end.- v

2; A hoii top for ingot, molds comprising o vided the'bridge 9"Yll'iioi i188 o hOTiilB g discharge openingadjacent its upper en Testing '2' lpp gfi f dt e i 3. A hobiop for ingotfmolds comprising a; 4109 molds and the long lop; l1" resting on the body portion of refractory material having v upperodge otitlie iidjoining mold and upon a, d scharge openingfabove its loWe1joiid.--

.fihich the trough lis s upportcd. M 4:. A hot top for ingot molds comprising In the "form shown mi igures {1- 511x35 the :1 body portion'of refractory! material on two ribs, 10 fond ,11 carried lay the order having a dischargw opening adjacent its I05 face of the feeder hsYe their upper ends coo upper end, above the npporQemLof the mold. of? at the point lQood 13, fvliicnos shown 5. A hoigjopfor ingot molds for multiplo in Figure 5 of the drawings isa sliort dircostingof metal ingots,.c0mprisi ng a body arranged around the some. In Figure 8 or? to be. supported witlgin the upper end of the tame below the lower end '8, of the open portion of refractory material odoptod-to be ing 7 and in which o'vent vizlie ribs serve as supported within the upper endoi the mold supports for one end of the trough as clearly and extending above the some and having a shown in Figure 6; offoiie drawings. disoharge opening ad aoent its upper end.

in th modification showd; in Figure 7 of abovefihe upporfond of the Iii 61d. iho drawings three walls or *ciiefeoder' oro provided with one ovorflo'w openings 6; A hot lop formultiple casting of'metail have to be arranged in o single lino out and having 31 discharge opening above the con he wronged around a central mold ond upper end of the mold. I I v f the motal'poored into tho-some and the said 7. A 'hoti'topfor, multi 1e castlng of metal 14,- 15 ingots comprising a body portion adopied to obyjne sovorm molds do not be supported on" thouppor end of tlieinold metal fiowing'oherefrom to the several molds 'ingots, comprisinga bo y portion adaptod the drawings all four sides of t noieeder are "mold and extending above the some andsaid provided wiili the openingslfi 18, 133 and 20 body portion haying o discharge opening in Which'evont'tiie central .mold io adapied adjacent its upper end considerably removed m supply molten moi-(Loo four molds on! from the upper end of'thevmoldi ranged around 3116 4 p 8. A hot top foringot molds,-oomprising 9W9 have shown & foodor $3" a body portion having supporting means in which ow outer peripheryis mado per above the. lower end to support the feeder on fecoly plain Without the, ribs and of sizo oiio iipper end of the mold and having a dis i0 Wiiliin theonlor o up or bore 22 of char o 0 min od'acont tho u 1' end and. 30

o -p v said supporting means serving as a support for a trough for conveying the molten metal from the feeder,

9. A hot top for multiple casting of metal ingots, comprising a body portion having a considerable portion extending: into the "heal and having an enlarged opening in oneside above the upper end of the mold and arranged to rereive and supprt a trough for conveying: the molten metal from the feeder.

10. A hot top for multiple easting of metal ingots comprising a bod portion of refractory material adapted to he supported within the mold and having a cut out portion below the upper end of the mold to function with a cutout. portion iii-the upper end of the ingot mold.

11. A hot top for multiple casting of metal ingots, comprising a body portion of refractory material adapted to be supported within the mold and having a rut out portion below the top of the mold the feeder being flush with the top of the mold having a cut out portion to function with the cut out portion of the feeder. p

152. A hot top for multiple. easting of metal ingots, comprising a bod}; portion of i'et'raetor material adapted to be supported within the mold and extending above the mold and havin; a. cut out portion below th upper nd of the feeder and extending below the upper end of the ingot mold, said.

ingot mold having; a cut out portion to function with cut out portion of feeder.

In testimony whereof we afiix our signatures.

BLOOMFIELD H. HUWARD. ERNEST J. TURNER. 

